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Finding the Fourth Proportional to 47,937.66, 66,154.03 and 28,817.64

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Solution

The fourth proportional to 47,937.66, 66,154.03 and 28,817.64 is: 39,768.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,937.66 : 66,154.03 = 28,817.64 : x
  2. Step 2: Convert to fraction form
    47,937.66/66,154.03 = 28,817.64/x
  3. Step 3: Cross multiply
    47,937.66x = 66,154.03 × 28,817.64
  4. Step 4: Simplify right side
    47,937.66x = 1,906,402,949.05
  5. Step 5: Solve for x
    x = 1,906,402,949.05/47,937.66
  6. Step 6: Final answer
    x = 39,768.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.